AOSP/DevCamera - Updated to sdkVersion 29.

BUG: 133177396

Test: manual - Tested the following Pixel phone.

$ make -j 40
$ make DevCamera -j

$ ls -l out/target/product/marlin/system/app/DevCamera/DevCamera.apk
  -rw-r--r-- 1 rtenneti primarygroup 87705 Oct 16 15:21 out/target/product/marlin/system/app/DevCamera/DevCamera.apk

$ adb install -r -d -g out/target/product/marlin/system/app/DevCamera/DevCamera.apk

Change-Id: I8855bd9151977b25c5bc5eec70b175e3dbbcd905
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 2286761..0981bc1 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -5,7 +5,7 @@
     android:versionCode="1"
     android:versionName="1.0" >
 
-    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="28" />
+    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="29" />
 
     <uses-feature android:name="android.hardware.camera.any" />